/Engine/Source/Runtime/CoreUObject/Public/UObject/EnumProperty.h
Allows a property to implement backwards compatibility handling for tagged properties
A state which tells the tagged property system how the property dealt with the data. Converted: the function has handled the tag. CannotConvert: the tag is not something that the property can convert. UseSerializeItem: no conversion was done on the property - this can mean that the tag is correct and normal serialization applies or that the tag is incompatible.
virtual EConvertFromTypeResult ConvertFromType ( const [FPropertyTag](API\Runtime\CoreUObject\UObject\FPropertyTag) & Tag, [FStructuredArchive::FSlot](API\Runtime\Core\Serialization\FStructuredArchive\FSlot) Slot, uint8 * Data, [UStruct](API\Runtime\CoreUObject\UObject\UStruct) * DefaultsStruct, const uint8 * Defaults )